REQ: SSL X-ISM (mac AU)

Hi, X-ISM is gone from my hard-drive and so from the web, apparently.
SSL wrote that the app is discontinued :/ I'm looking for the Mac version. If anyone had that in stock or any other (free) plugin alike .. Please let me know .. Xs

INFO:
X-ISM is a state of the art VST/AU plug-in which can interpret inter-sample peaks, allowing engineers to make informed judgements about the resultant sound quality of the mix.
X-ISM uses significant processing to provide a combination of up-sampling and filtering that mimics the operation of an oversampling DAC’s reconstruction process. The result is a meter that shows inter-sample errors and provides a useful tool that most DAW metering misses.